RPi DAC HATs

I'd really like Allo's Kali + Piano 2.1 bundle with their power supply and case for the RPi, but don't want to deal with shipping from India. Seems like Massdrop is the perfect system to get the price down and deal with a US distributor. Allo already offers a bulk discount- 10% at just 5 units. What kind of discount could we get for 50 units? Or 250?